A111180 - OEIS

%I #15 Nov 04 2014 17:55:50

%S 1,2,12,1440,7257600,289700167680000,1803968969906847744000000,

%T 641649083271157094762019815424000000000,

%U 78053467161754909919949074014980107579424768000000000000

%N Product_{k=1..n} prime(k)!.

%e 2, 3, 5 and 7 are the first 4 primes. So a(4) = 2! * 3! * 5! * 7! = 2 *6 *120 *5040 = 7257600.

%t Table[ Product[ Prime[i]!, {i, n}], {n, 0, 8}] (* _Robert G. Wilson v_ *)

%t FoldList[Times,1,Prime[Range[10]]!] (* _Harvey P. Dale_, Apr 08 2012 *)

%Y Cf. A039716.

%K easy,nonn

%O 0,2

%A _Leroy Quet_, Oct 22 2005

%E More terms from _Robert G. Wilson v_, Oct 29 2005